Different Kinds Spin Different Kinds of spin ball, adjust the position of the rotating ball to suit for your training needs, enjoy your funny moment. Frequency of Serve:40-70/min. Speed of Serve:4-40m/s.
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9 Different Spin Balls Top spin, back spin, left spin, right spin, left top spin, right top spin, left back spin, right back spin, and no-spin. If you only want topspin, you can set the backspin speed to 1; if you only want backspin, you can set topspin to 1; if you want non-spin, you can set the topspin and backspin adjust to the same speed.
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Easy to Use Clear controller let you use this machine easy and simply, you can control the functions by remote. This tennis ball launcher suitable for beginners and junior scholars.
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